Driving EVEN SLOWER THAN NORMAL GOT ME:-
73.x Mpg!
A fair bit of night driving with nobody on the road+ me testing an idea of trying to keep as close to +50% of engine idle speed has really paid off!
for my car that was 1200 rpm, for as much as possible, although obviously that wasn't always possible all the time and I did have some spirited runs to give the engine a shakedown.
It would be kinda hard for me to explain why I thought +50% idle engine would be a good target but it seems to have worked out very well!
[diminishing returns on air and fuel consumption, extra heat being generated then wasted, extra internal friction+ external drag etc etc, im an engineer so this all floats about in my head alot]
I had to stop and fill up 10litres early on this tank tho as i had some of those tesco fuel save things to use which expire today, only 4pence a litre but it helps bring the avg cost per mile down. I shall have to work out what my range would have been
I shall have to try and repeat this again! ^^
+42.6% over the factory 51.4mpg

ironically I was re-listening to the original BBC Hitch-hikers Guide to the Galaxy on the way, perhaps...... a sign?
Anyway here is the little happy msg from fuelly for this particular fill up:-
Fuel-up Added!
Best Tank!
Congratulations, this tank is your best so far at 73.7 mpg! You beat
your previous record 66.5 mpg on March 11, 2014 by 7.3 mpg.
Details
MPG: 73.7
L/100km: 3.8
km/L: 26.1
Miles: 694.0
Litres: 42.790
Price: £1.289/Litre
Total: £55.156
EDIT:- just realised this has just touched me to under 10p per mile as well! ah this was a good tank!

and that its actually 43.38% over factory spec, so not quite 42 but im happy with more!
